[jboss-user] [EJB 3.0] - Could not dereference object on Remote Server

[mlandwehr]

Hi!

I'm a newby in ejb3.0 and startet with the tutorials. 

The first step was testing the Stateful-ShoppingCart-Example. 
I used the JBoss4.0.4 (ejb3-installer) on a local machine - the same machine from where i started the client-app.   >> everything works!

The next step was using an 4.0.4-JBoss on an remote Server (Ubuntu 5.10). This Server i used already with jboss4.0.3 and ejbs2.1 and j2ee works with him. 

When I deployed the ShoppingCart.jar and tryed to run the Client from an remote win2000-pc i have this error:




  | Exception in thread "main" javax.naming.NamingException: Could not dereference object [Root exception is org.jboss.remoting.CannotConnectException: Can not get connection to server.  Problem establishing socket connection.]
  | 	at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1150)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:705)
  | 	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
  | 	at javax.naming.InitialContext.lookup(Unknown Source)
  | 	at org.jboss.tutorial.stateful.client.Client.main(Client.java:53)
  | Caused by: org.jboss.remoting.CannotConnectException: Can not get connection to server.  Problem establishing socket connection.
  | 	at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:267)
  | 	at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
  | 	at org.jboss.remoting.Client.invoke(Client.java:525)
  | 	at org.jboss.remoting.Client.invoke(Client.java:488)
  | 	at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:41)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)
  | 	at org.jboss.aspects.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:34)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88)
  | 	at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:46)
  | 	at $Proxy0.createProxy(Unknown Source)
  | 	at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:52)
  | 	at javax.naming.spi.NamingManager.getObjectInstance(Unknown Source)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1125)
  | 	at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1142)
  | 	... 4 more
  | Caused by: java.net.ConnectException: Connection refused: connect
  | 	at java.net.PlainSocketImpl.socketConnect(Native Method)
  | 	at java.net.PlainSocketImpl.doConnect(Unknown Source)
  | 	at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
  | 	at java.net.PlainSocketImpl.connect(Unknown Source)
  | 	at java.net.SocksSocketImpl.connect(Unknown Source)
  | 	at java.net.Socket.connect(Unknown Source)
  | 	at java.net.Socket.connect(Unknown Source)
  | 	at java.net.Socket.<init>(Unknown Source)
  | 	at java.net.Socket.<init>(Unknown Source)
  | 	at org.jboss.remoting.transport.socket.SocketClientInvoker.createSocket(SocketClientInvoker.java:535)
  | 	at org.jboss.remoting.transport.socket.SocketClientInvoker.getConnection(SocketClientInvoker.java:471)
  | 	at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:263)
  | 	... 17 more
  | 


In the Demo-Code I just made this changes:

jndi.properties
  | 
  | java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
  | java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
  | java.naming.provider.url=jnp://192.168.1.2:1099
  | 


The run.sh was modified, too:


  | while [ $STATUS -eq 10 ]
  | do
  | # Execute the JVM
  |    "$JAVA" $JAVA_OPTS \
  |       -Djava.endorsed.dirs="$JBOSS_ENDORSED_DIRS" \
  |       -Djava.rmi.server.hostname=192.168.1.2 \
  |       -Djava.rmi.server.useLocalHostname=false \
  |       -classpath "$JBOSS_CLASSPATH" \
  |       org.jboss.Main "$@"
  |    STATUS=$?
  |    # if it doesn't work, you may want to take a look at this:
  |    #    http://developer.java.sun.com/developer/bugParade/bugs/4465334.html
  | done
  | 

My Linux-Server is already working with jboss4.0.3 and i can access the 2.1-beans via the clientapps on my win2000pc - the network-connection and the firewall-configuration must be ok.

Where is the(my) problem?

Greetings
Martin

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